gio/gthemedicon.c

   1 /* GIO - GLib Input, Output and Streaming Library
   2  *
   3  * Copyright (C) 2006-2007 Red Hat, Inc.
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General
  16  * Public License along with this library; if not, write to the
  17  * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  18  * Boston, MA 02111-1307, USA.
  19  *
  20  * Author: Alexander Larsson <alexl@redhat.com>
  21  */
  22
  23 #include <config.h>
  24
  25 #include "gthemedicon.h"
  26
  27 static void g_themed_icon_icon_iface_init (GIconIface       *iface);
  28
  29 struct _GThemedIcon
  30 {
  31   GObject parent_instance;
  32
  33   char **names;
  34 };
  35
  36 struct _GThemedIconClass
  37 {
  38   GObjectClass parent_class;
  39 };
  40
  41 G_DEFINE_TYPE_WITH_CODE (GThemedIcon, g_themed_icon, G_TYPE_OBJECT,
  42                          G_IMPLEMENT_INTERFACE (G_TYPE_ICON,
  43                                                 g_themed_icon_icon_iface_init))
  44
  45 static void
  46 g_themed_icon_finalize (GObject *object)
  47 {
  48   GThemedIcon *themed;
  49
  50   themed = G_THEMED_ICON (object);
  51
  52   g_strfreev (themed->names);
  53
  54   if (G_OBJECT_CLASS (g_themed_icon_parent_class)->finalize)
  55     (*G_OBJECT_CLASS (g_themed_icon_parent_class)->finalize) (object);
  56 }
  57
  58 static void
  59 g_themed_icon_class_init (GThemedIconClass *klass)
  60 {
  61   GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
  62
  63   gobject_class->finalize = g_themed_icon_finalize;
  64 }
  65
  66 static void
  67 g_themed_icon_init (GThemedIcon *themed)
  68 {
  69 }
  70
  71 /**
  72  * g_themed_icon_new:
  73  * @iconname:
  74  *
  75  * Returns: a new #GIcon.
  76  **/
  77 GIcon *
  78 g_themed_icon_new (const char *iconname)
  79 {
  80   GThemedIcon *themed;
  81
  82   g_return_val_if_fail (iconname != NULL, NULL);
  83
  84   themed = g_object_new (G_TYPE_THEMED_ICON, NULL);
  85   themed->names = g_new (char *, 2);
  86   themed->names[0] = g_strdup (iconname);
  87   themed->names[1] = NULL;
  88
  89   return G_ICON (themed);
  90 }
  91
  92 /**
  93  * g_themed_icon_new_from_names:
  94  * @iconnames:
  95  * @len:
  96  *
  97  * Returns: a new #GIcon.
  98  **/
  99 GIcon *
 100 g_themed_icon_new_from_names (char **iconnames, int len)
 101 {
 102   GThemedIcon *themed;
 103   int i;
 104
 105   g_return_val_if_fail (iconnames != NULL, NULL);
 106
 107   themed = g_object_new (G_TYPE_THEMED_ICON, NULL);
 108   if (len == -1)
 109     themed->names = g_strdupv (iconnames);
 110   else
 111     {
 112       themed->names = g_new (char *, len + 1);
 113       for (i = 0; i < len; i++)
 114         themed->names[i] = g_strdup (iconnames[i]);
 115       themed->names[i] = NULL;
 116     }
 117
 118
 119   return G_ICON (themed);
 120 }
 121
 122 /**
 123  * g_themed_icon_get_names:
 124  * @icon:
 125  *
 126  * Returns:
 127  **/
 128 const char * const *
 129 g_themed_icon_get_names (GThemedIcon *icon)
 130 {
 131   g_return_val_if_fail (G_IS_THEMED_ICON (icon), NULL);
 132   return (const char * const *)icon->names;
 133 }
 134
 135 static guint
 136 g_themed_icon_hash (GIcon *icon)
 137 {
 138   GThemedIcon *themed = G_THEMED_ICON (icon);
 139   guint hash;
 140   int i;
 141
 142   hash = 0;
 143
 144   for (i = 0; themed->names[i] != NULL; i++)
 145     hash ^= g_str_hash (themed->names[i]);
 146
 147   return hash;
 148 }
 149
 150 static gboolean
 151 g_themed_icon_equal (GIcon *icon1,
 152                     GIcon *icon2)
 153 {
 154   GThemedIcon *themed1 = G_THEMED_ICON (icon1);
 155   GThemedIcon *themed2 = G_THEMED_ICON (icon2);
 156   int i;
 157
 158   for (i = 0; themed1->names[i] != NULL && themed2->names[i] != NULL; i++)
 159     {
 160       if (!g_str_equal (themed1->names[i], themed2->names[i]))
 161         return FALSE;
 162     }
 163
 164   return themed1->names[i] == NULL && themed2->names[i] == NULL;
 165 }
 166
 167 static void
 168 g_themed_icon_icon_iface_init (GIconIface *iface)
 169 {
 170   iface->hash = g_themed_icon_hash;
 171   iface->equal = g_themed_icon_equal;
 172 }